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基于改进的Ｄｅａｎ－Ｓｔｉｅｌ粘度模型，提出了将状态方程与之结合进行原油粘度预测的方法，采用Ｐａｔｅｌ－Ｔｅｊａ状态方程预测结果最好，平均相对误差为６．２７％。
Based on the modified Dean-Stiel viscosity model, a method of predicting the viscosity of crude oil by combining the state equation was proposed. The Patel-Teja equation of state was the best, and the average relative error was 6.27%.